Hey! here is the solution: http://urjnaswxkfjjknseochallenge.blogspot.com/2013/02/answer-to-yahoo-question_4345.html Momentum Conservation: Since the boat is at rest initially, the total momentum is zero. So it has to be zero after the mass is...

2 Answers · Science & Mathematics · 18/02/2013

Angular speed is in radians, so divide the linear speed by the radius. (3.7) / (15) = 0.247, in whatever units you're using.

2 Answers · Science & Mathematics · 07/06/2010

Sorry, your link leads to a login page requiring a P/W....

2 Answers · Science & Mathematics · 27/03/2013

the x component of Vi = 18.7@31.0 deg is 16.03 m/s so t = d / Vx = 29.0 / 16.03 = 1.329 s and the initial y component is 9.631 m/s so using the time from above Vyf = Vyi + g t = 9.631 + (-9.81)(1.329) = -3.4065 m/s combining the final x and y components (16.03...

2 Answers · Science & Mathematics · 01/02/2011

we are going to work this out by using momentum mass of fisherman = 126kg mass of package=15m speed of boat =0m/s speed of package= 4.6m/s momentum before = momentum after (126 x 0) ( 15 x 4.6) = (126v) ( 15 x 0) [ the package will eventually come to rest afterwards] 69= 126v 69/126= v v=0.55m/s...

2 Answers · Science & Mathematics · 02/05/2017

The answer is C, because in the spectators frame the sprinter is going .99c and light is traveling @ 1.00c: However in the frame of the runner, the light it STILL traveling @ 1c, the runner will say that the light beat him by...

2 Answers · Science & Mathematics · 20/05/2011

50km/hr (40+60) divide by 2 = average speed

2 Answers · Science & Mathematics · 31/10/2012

Helium is monoatomic. While Hydrogen is diatomic. Therefore, Since the molecular weight Helium is 2 and a diatomic Hydrogen is 2. I believe the speeds should be exactly the same. EDIT...

2 Answers · Science & Mathematics · 12/11/2012

a) The work done by the horizontal force = F*d*cos(theta) Here: F = 80 N, d = 4.8 m (displacement), theta = 39 degree (angle between the force and the direction of motion). Therefore W = (80)(4.8)(cos39) = 298 J b) To find the final kinetic energy we will find the...

2 Answers · Science & Mathematics · 01/11/2012